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Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2023
Subsequent Events [Abstract]
Subsequent Event	Subsequent events On February 1, 2024, we announced that Premion, LLC has signed an agreement and simultaneously closed on the acquisition of Octillion Media. Octillion is a next-generation demand-side platform focused on Local Connected TV(CTV)/Over-the-Top (OTT) advertising. The acquisition will expand Premion’s capabilities in the growing CTV marketplace by combining Octillion’s technology with Premion’s local CTV/OTT advertising solution. The acquisition is being funded with available cash on hand, which will not have a material impact on TEGNA’s cash or leverage levels. On February 8, 2024 we received $152.9 million of pre-tax cash proceeds upon the completion of the previously-announced sale of Broadcast Music, Inc. to a private equity firm. Proceeds from the sale will be included in the newly announced return of capital to shareholders and/or the pursuit of bolt-on acquisitions.